diff --git a/sys/alpha/include/pmap.h b/sys/alpha/include/pmap.h
index de171c1b6f86..1c2939007011 100644
--- a/sys/alpha/include/pmap.h
+++ b/sys/alpha/include/pmap.h
@@ -221,7 +221,6 @@ extern vm_offset_t avail_start;
 extern vm_offset_t clean_eva;
 extern vm_offset_t clean_sva;
 extern vm_offset_t phys_avail[];
-extern char *ptvmmap;		/* poor name! */
 extern vm_offset_t virtual_avail;
 extern vm_offset_t virtual_end;